Box-covering machine



W. F. MORSE..

BOX COVERING MACHINE. APPLICATION f lLED JUNE 29.1913.

1,41 9,641 Patented June. 1.3, 1922.

'I SHEETS-SHEET i.

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VW. F. MORSE. Box covEmNG MACHINE. A'PPLICATION FILED JUNE 29. 1918.

SHEETS-SHEET 2.

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BOX COVERING MACHINE. APPLICATION min luns'ze'. 191s.

` Patented .1111163v 13, 1922.

7 SHEETS-SHEET 4 .W. F. MORSE. Box CovEmNG MACHINE..

APPLICATION FILED JUNE 29, 1918.

Patented June 13, 1922.

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atented June 13, 1922.

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BOX COVERING MACHINE.

APPucATloN. miv LUNE 29, 1918.

1,419,541, k1 ateme unme 13,1922.

TSHEETS-SHEET 7'- WILLIAMF. lifIORSE,` OF'ROCHES-EDER, NEVI YORK, ASSIGNOR TO SAMUEL R. PARRY, or

ROCHESTER, NEW YORK;

Box-covaarne MACHINE.

Letigetf.

y Specification of Letters Patent. Patented June 13, 1922;

Application med June v2e, 191s. sel-iai No'. 242,64sl

the sides and ends being` held together withV corner stays or in any other suitable manner.

Thereafter the outside ofthe box is covered with a sheet of paper which goes around the sides and ends of the box. One edge of the cover paper is tucked down inside of the box and the other edge is folded down over the bottom of the box. This sheet of covering paper must 'be longer than the periphery of the box. The ends of the sheet will lap each other and what is lapped yis wasted. It.

is, therefore, desirable to make this lap as small as possible in order to avoid waste.

Machines which are used for covering paper boxes, are provided with a mandrel or box` form on which the box is placed. The mandrel is rotated with the box to facilitate the covering thereof. These machines are provided with a roll of paper from which the web of paper is fed over rollers which coat it with an adhesive and give it a sufficient exposure so as to insure the proper tempering thereof. These machines are provided with a knife which cuts the paper at any point desired by the operator. The operator applies the end of the paper web with her hand to the box and starts the box to rotating. The rotation of the box draws lthe paper web forward and winds it to theV box vand at the proper point the operator moves the knife to cut the paper after a length has been fed suflicient in the ljudgment of the operator to cover the box. This length will vary according to the accuracy with which the operator judges the length thereof so that more or less lap passes onto the box, most of which iswasted. The object of this invention is to provide a machine which is provided with means for automatically cutting the cover paper at a desired, pre-determined length, which length in each case will be slightly in excess of the perimeter of the box.

Another object of the invention is to provide means by which the length of paper cut can be varied to suitthe size of the box that is being covered.

These and other objects of'the invention will be illustrated in the drawings, idescribed in the specification and pointed out in the claims at the vend thereof. In the accompanying drawings: y Figure l Aisa side elevation ofy the complete box covering `machineembodying my invention.. i v

Figure lAv is a toppplan view of the left handY end ofthe machine shown in Figure l.

F igure'Q is an end elevation of one of the adjustable clampingv brackets for supporting a tempering attachment.

Figure 3 is a side elevation of the bracket i shown in Figuren?. l

Figure et is an enlargedfsi'de elevation of the covering` head of the machine.v

Figure 5 is a vertical section, the section being taken on the line C-5X of Figure 4e, l

the cutting mechanism being shown in end elevation.

Figure 6 is a horizontal section on the line fixe-6X of Figure 5, showing the clamping device for holding the cutting device at the desired elevation. Y

Figure 7 i's a vertical, sectionalview of the clutch mechanism, the section being taken onthe line AFX-7X of Figure 5.

Figure 8 is a vertical, sectional view of the clutch mechanism, the section being taken on the line SX-SX of Figure 5.

Figure 9 is a vertical section of a box form spindle and drivingmechanism therefor, the section being taken on the line 9Y--9X of Figure et.

Figure 10 is a side elevation of a sprocket wheel for rotating the box form spindle.

Fi oure ll is a vertical section through the box form spindle, the section being taken on the line 11K- 11X of Figure 9.

Figure l1^ is a perspective view of the expanding bushing.

Figure l2 is a vertical, cross sectional view of a modified form of a clutch mechanism.

Figure 13 is a perspective view of the cutting knife and ledger blade, the planes of the two knives being outlined by vertical and horizontal shade lines. In the several figuresv of the drawings, like reference numerals indicate like parts.

The complete box covering machine shown in Figure 1 comprises the bed frame l which On top of this bed frame are provided'upy rights 4` and 5 which in turn support a horizontal railing 6, on which the paper reel 7, glue pan 8 and tempering attachments 9 and 10 are mounted. At the frgont endof the bed frame 1 is mounted the box covering Amachine head 11, the detailed construction of which Will hereinafter be described.

The bed frame.

The general construction of the bed frame 1 is well known in the art of box covering machines which has, as heretofore stated, theA two horizontal railings' 6 supported thereon. At the rear end of these railings is mounted the paper reel'7 upon which the paper supplyvroll is drawn. l/Vhen the paper leaves the reel 7 it passes over the glue roller 12, mounted to rotate in the glue pan 3. A

distributingroller 13 mounted close to and parallel tothe glue roller 12, is adapted to evenly spread the glue over the surface of the paper after it has left the roller 12 and 'passes underthe roller 13 and onto and over the tempering rollers 9 and 10. `The lengthy U shaped bracket 14 is adapted to eng'z tg fel with the railing 6 from below.- A 'clamping screw 18 is threaded into the bottom of the clamp 15 and is adapted to be screwed up against the bottom of the U shaped bracket 14 So as to force this bracket against the under side of the railing 6 and draw the hooks 17 and 19 down on the railing to hold both the bracket 14 and clamp 15 firmly in place thereon. v

After the paper leaves the last of the tempering attachments, it is guided onto the coveringmachine head 11.

ooerz'ng machine head.

This head is mounted on the bracket 20 which is suitably bolted to the front of the bed frame 1 and comprises a clutch mechanism 21, a cut-off mechanism 22 and a box form or mandrel 23 and its rotating mechanism.

" The ohm/Lch mechanism.

This mechanism is surrounded by a casing which is formed in two sections 24 and 25 divided vertically as shown in Figure 5. The inner section 25 has a hub 26 provided thereon into which one side of the horizontal bearing block 27 formed in the bracket 2() is adapted to engage. A bolt 23 passing provided in each section of the casing.

through `a portion of the bracket 2O below the bearing block 27, is threaded into the hub 26 and holds the section 25 of the casing firmly in place on the bracket. Bolts 29 are threaded into lugs provided on the periphery of both of the casing sections 24 and 25 to hold these sections together.

The driving shaft 30 is mounted in the bearing 27 formed in the bracket 2O and has an extension of reduced diameter projecting into the inside of the casing on which the clutch member 31 and its driving gearr 32 is mounted. I

The driving gear 32 in turn meshes with the pinion 33 keyed to the jack shaft 34 which shaft is mounted in a suitable bearing A pulley 35 is keyed to the outside of the jack shaft 34 for driving the clutch mechanism. The gear 32 is provided in its hub with key ways 36, 36, four of Athem being shown: The pulley 35 and gears 33 and 32 rotate continuously. The gear 32 is intermittently connected to the spindle or malefmember 31 of the clutch mechanism as follows:

On the outside of the spindle 31 is provided an arm G0 integral therewith. In the spindle 31 is provided a recess 37 in which is lmounted to rock an oval shape key 33. On the end of this key is provided a lever or crank 39 adapted to swing in a seat in the arm 60 as shown in Figure 7. This lever or crank 39 is strongly pressed in one direction by the stud 40 which'is actuated by the compressionspring 41 which surrounds ythe pin 42, forming a part of the stud, whichV pin passesthrough the plug 43 which is perforated to receive it.

The lever 39 is held in the position shown in Figure 7 by the latch 44 forming part of the bell crank 45, pivoted at 46 to a lug 47 mounted on the casing section 25. The upper end of the bell crank 45 is provided with a casing 48 in which is mounted to slide a stud 49 having a pin 50 formed thereon around which is coiled a compression spring 51. A plug 52 makes threaded engagement with the end of the casing 48 and is perfo.-

rated to receive the pin 50 so that it may slide therein. Connected to the latch. 44 is the link 53 connected to a treadle 54 by 'which it may be operated so that the latch 44 will be thrown down out of engagement with the lever 39. This permits the spring 41 to expand, pressing the stud 40 forward, which in turn rocks the lever. 39' and the oval shaped key 38,*throwingi't into engagement with the next key way 36, by which the members of the clutch are connected so that the male member must rotate with the female mem'ber and inthe Vsame direction. The parts will rotate together as long as the latch 44 remains drawn down. As soon as the link 53 is released, the spring 51 will expand and draw the latch 44 up, causing it'to engage the crank 39 as it approaches, l

Drilling mechanism of boa: form.

Mounted on the end of the shaft 30 is provided a sprocket wheel 61 which is driven by the shaft. This. sprocket wheel drives a chain 62, which in turn drives a sprocket wheel 63, which sprocket wheel drives-the shaft 64 which carries the box form or mandrel 23. These sprocket wheels are of the same diameter and have the same number of teeth and the shafts to which they are connected, will therefore rotate in unison. A shoe 112 is provided to take up the slack in the chain 62. This shoe is adjustable up and 'shaft 30 as a center, a bearing 82 being in- -terposed between the shaft and the casing. At :the right hand end of the casing 79 is provided a plate 83, having asegmental slot down in the boss 113, in which it is clamped by a set screw.

Interposed between the sprocket wheel 63 and the shaft 64 are the bushings 66 and 67. The bushing 66 has a tapered seat therein as shown in Figure 9, and the bushing 67 has four slots therein, the even numbered slots 68 and 70 starting from the left hand end as shown in Figure 11A and the odd numbered slots 69 and 71 starting from the right hand end of the bushing as shown in Figure seat of the bushing 66 so that it'will, as it 11A. The odd numbered slots extend past the even numbered slots. lThis bushing 67 normally standsout away from the shaft 64 and can be compressed closely against it. The bushing 67 is tapered to lit the tapered moves to the right, have its sections drawn together against the shaft 64. The bushing 67 is threaded on the right hand end thereof as shown at 72. On this threaded Yend is mounted a hand wheel 7 3 which makes threaded engagement therewith. On the hub of the hand wheel is the annular groove 74 with which engages the semi-circular flange on the sprocket wheel 63. This connection causes the hand wheel and the sprocket wheel tomove laterally together and permits l .95, the block "being clamped on the link by the removal ofthe hand wheel when the shaft 64 and the bushing 67 are withdrawn. On the end of the bushing 66 is provided a A flange 76 and at an intermediate place is provided a shoulder 77, against which rests the hub of the sprocket wheel 63. The hub of the sprocket wheel forms a flange parallel- By the rotation ofthe hand wheel 73, the bushing 67 is drawn to the right through the bushing 66which remains stationary in the bearing. The bushing` 67 is contracted on the shaft 64 so as to take a firm grip thereon by its endwise movement through the bushing 66, and rigidly fastens the bushing 66 and the shaft 64 together so that they all rotate together. yByV turning the hand wheel 7 3 in the reverse direction the bushing 67 is moved to the left and the shaft 64 is released so that it can slide in the bushing either to the right or left and be clamped to rotate in the new position. The mandrel can also be adjusted angularly so as to modify its starting and stopping position. JAfter it has once been set, the mandrel will always stop in the same position, due to the fact that it is positively geared to the shaft 30, which is held 1, against oscilla-tion by the latches 55 and 44 which engage directly and indirectly with the arm keyed to the shaft 30 at the end of the revolution of the shaft.

The casing 79 is divided longitudinally into two halves 80 and 81. The shaft 64 is carried at one end of this casing and the other end of the casing swings around the coveringl paper.

Paper cutting mechanism.

Keyed on the shaft 30 is the cam 87. On the bracket 20 is provided the lug 88, in which is clamped a spindle 89. (See Figures 4 and 5.) Mounted to rock on this spindle is the bell crank 90, theL lower arm of which engages withthe'cam 87 and is rocked thereby. The bell crank is held in engagement with the cam by the spring 91. On the end of the upper arm of the bell crank is provided a 'boss 92 through which passes a stud 93, which stud isV integralV with a split block 94; Through this splitblock passes a link thescrew and hand wheel 96. At. the upper en d the link 95 is connected to the crank 97, which crank is clamped on the shaft 98, which shaft v carries a swinging arm 99 provided on' its outer end with a cutting knife 100. This cuttingknife works against the ledger blade -101 which is mounted on a bracket 1,02, pivoted at 103 to the stationary bracket 104, which bracket is carried on a I blade.

1085 The rear end of the spring 107 'bears Aagainst a Harige 109 ofthe bracket 1011 and the forward end of the spring bears against a j am nut 110 threaded on the pin 108. .The other end of the pin extends through the vbracket 102 and has a round head thereon with lwhich it engages 'the bracket.4 This head is provided with a slotwhich permits the pinto be turned by a screw-driver.

The knives 100 .and 101 are set with refer- 100 swings up, the knife 101 can-yield a little so as to adjust itself to the knife 100 and A `make firm contact therewith. i

The side of the cutting knife 100 toward Y 'the ledger blade 101 isground cylindrical.

The cutting edge of the cutting knife is at Y an angle to the axis of the cylindrical surface and follows a spiral line on the ycylindrical surface. The blades or planes of the knives 100`and`101 come together substaiitiaily at right angles to each otherl The cutting knife 100 is set with its edge at a congoodf shearing action;

where their edges cross each other intheir shearing action. The angle which the edge of the knife 101 makes-with the plane of the knife 100 is sufficient so that the edge of the l' knife 100 as it moves up and comes intol contactwithvthe edge'of the knife 101 will push the knife 101 back faster than the bevel of the knife 100 approaches the edge of theV knife 101. This will keep the knives apart except at the point where the edges cross.

each other and there the knives will operate both to shear therpaper and sharpen each other. The paper passes under the ledger ,Y blade 101 and the glued surface of the paper is underneathv and only. the edge of the knife 100 comes into contact with the glued surface and there is, therefore',but little chance of fouling either ofthe knives' in consequence. i

this figure, the knife 100 is shown just beginning to make contact with theknife 101. Y

The planes of the two knives are shown in section-lines.v The section lines indicating the Laia-ear plane ofthev knife V100 intersect a triangular shaped portion ofv thev kiiife'101, the. apex of which triangle is at the right hand corner and the base of the triangle is at the left of theknife 101 in Figure 13. The edge of the knife 101 is the hypotcnuse of therti'iangle. The plane of the knife 101 projectcd makes Contact witlitlie upperr right `hand corner of the knife 100 and'. passes above the upper left hand corner of the in contact at the right, the left hand end of' the knife 101 vprojects over the knife 100 and the left hand end of the knife 100 stands at some distance below the plane of the knife 101 and doesnot make contact therewith. at

any point except at the right hand end. The l c right hand edge of they knife 100 extending Isiderable angle to the plane'of'the 'ledger This is necessary in order to secure The ledger blade` is set with its edgeat a smaller angle to the -plaiie of the cutting knife.l This angle isv *only so much as maybe necessary to move `the ledger blade enough so that the contact A fbetween the knives is confined to the point -above the plane of the knife'101. l l

y Operation of madame.

VIn the operation of the machine, the boxiv to be covered consecutively. The'shaft G11- is adjusted longitudinally so as to make the Ybox forni center with the web of' paperthat is fed from the supply roll and is adjusted angularly so as to start the box from a convenient position to receive the forward endl of the paper web. The casing 7 9 is raised .for a small box as shownin Figure 1 and lowered for a large box shown in Fig. ure 4f.

The operator places thebox on the man-` drei and takes the looseend of the paper web and draws it forward between the knives and applies itjto the box slightly in advance of a predetermined point Yon lthe box, at which the rear end of the paper will always termi-V nate. The operator then presses the treadle ff which closes the 'clutch S31-:and 32 and starts the rotation 'of the mandrel. This, in turn', draws the paper forward'. At the same time the cani 87jrotates and at the proper moment causes the bell crank 90 to rock and move kthe knife to sever the paper. The paper so severed will be sufficient to cover the box and reach the pre-determined starting point, overlapping the front end of the ilo paper. lith a very small box, the mandrel and the knives are brought fairly close together, while with a large box they are put further apart. To bring the mandrel and the knives closely together, the stem 105 can be lowered, the bracket 104 can be set forward in the head 111 and the .casing 79 can be swung up as shown in Figure 1. lhen the machine is set for working on a large box, the casing 79 can be lowered to the position shown in Figure 4, the stem, 105 can be raised and the bracket 104 can be set back thereon as shown in Figure 4.

In Figure 12 I have shown a modified form of the clutch mechanism. The arm 60 is shown keyed on the shaft 80. In the arm 60 is pivot-ly mounted a crank 120. Mounted on the case is a stud 121 on which swings a lever 122 operated by a link 123. On the leverl 122 is carried a stud 124. On the stud 124 is pivotly mounted the latch 125. rIhis latch is perforated at the end as indicated at 126. On the arm immediately above this perforation is provided a sleeve 127 in which is contained a compression spring 128. A bolt 129 is provided having nuts and washers on each end thereof, forming heads. The head on the upper end holds the spring 128 in place against the end of the crank 125 and the head on the lower end holds the latch 125 in place against the sleeve. The latch 125 has a projection 130 thereon which engages the crank 120.

The operation of this clutch is as follows:

When the link 123 is pulled down, the lever 122 is drawn down with it carrying down the latch 125 releasing the crank 120 which is then thrown forward by a spring similar to that shown in Figure 7, closing the clutch as above described and causing the rotation thereof. Vhen the lever 122 returns to the position shown in Figure 12, the latch 125 engages the crank 120 and opens the clutch and stops the rotation thereof. The momentum of the moving parts of the clutch causes it to strike quite a blow when the part-s are brought to rest and the shock is taken up by the spring 128 as follows.

The crank 120 strikes the projection and rocks the latch around the stud 124 causing the outer end to draw down on the bolt 129 and compress the spring 128. The spring then expands and brings the parts back to normal. A pawl 131 is provided which engages the arm from the rear side thereof and prevents a rebound thereof, when the clutch is stopped. A latch 132 is provided which locks the crank 120 from swinging forward and makes the clutch inoperative.

I claim:

1. In a box covering machine, the combination of a spindle, a box form mounted on the end thereof, a bearing for said spindle, bushings interposed between said spindle and said bearing and adapted to rotate with the spindle, and a hand wheel for clamping said bushings to or release them from said spindle.

2. In a box covering machine, the combination of a spindle, a box form mounted on the end thereof, a bearing for said spindle, bushings interposed between said spindle and said bearing and adapted to rotate with the spindle, and a hand wheel for clamping said bushings to or releasing them from said spindle, said spindle being adjustable longitudinally and angularly in said bushings in any position.

3. In a box covering machine, the combination of a box form, a spindle supporting said box form, a sprocket wheel and chain gearing for driving said spindle, said spindle being mounted in a bearing adapted to swing around a xed center from which it is driven, means for clamping said bearing in any desired position and means for rotating said spindle and stopping it uniformly in a predetermined angular position.

4. In a box covering machine, the combination of a box form, a chain and sprocket gearing for rotating said box form, a shaft for driving said chain gearing, a clutch for driving said shaft, means for manually closing said clutch and means for automatically opening said clutch and positively stopping the rotation of the shaft and locking it in a predetermined angular position.

5. In a box covering machine, the combination of a box form adapted to have a continuous strip of paper fed thereto, a cut off mechanism adapted to cut off the strip of paper fed to said box form, an individual driving mechanism for said cut off mechanism and an individual driving mechanism for said box form, each of said individual driving mechanisms being adjustable with relation to the other, a common driving mechanism for bothy of said individual driving mechanisms, and controlling means operating on said common driving mechanism to control said two driving mechanisms of said cut off mechanism and said box form so as to automatically move said box form and said cut ofi' mechanism into a predetermined position with relation to each other during each revolution of said box form.

6. In a box covering machine, the combination of a box form, a spindle supporting said box form, a swinging arm in which said spindle is carried, a driving shaft around which said arm swings, a chain gearing between said spindle and said shaft, a cam on said shaft, a knife for cutting the wrapping paper, and means for driving said knife from said cam.

In testimony whereof I aiiix my signature.

WILLIAM F. MORSE. 

